Since the director of People's Name said in an interview with the media, when he was a bit worried that the play would be interrupted at any time, we would understand this meaning: hurry to see, and look and cherish.
Sure enough, this drama has recently ignited. The story begins like this:
“A project director of a national ministry has been reported bribery, and when the leader of the Supreme People’s Procuratorate’s Investigation Department, Hou Liangping, came to search, what he saw was a plain old man dressed in plain clothes. "Just eat noodles in the shabby old house.
While the mask of the corrupt element was eventually torn, Ding Yizhen, deputy mayor of Jingzhou City in H province, who was implicated in the case, escaped from the French Open by anti-reconnaissance means under the covert help of a mysterious figure. overseas. The case clues were finally located at the equity competition of a H-State state-owned Dafeng Garment Factory caused by the Jingguang Guangming project. The political forces involved in each of these groups were intricate and complicated. â€
While everyone rejoiced over the scale of anti-corruption and the intense storyline, the Lei Feng net editor found some "unlike" messages. In particular, Lei Fengnet found that the mysterious figure will give Ding Yizhen's mobile phone that is reported to be vented, and rushed into the toilet to avoid tracing himself! In fact, he may still be found!
1. Mobile phone card rushed into the toilet by a mysterious figure + mobile phone positioning + communication record analysis
In the first concentration, the Supreme People’s Procuratorate’s Anti-Corruption Bureau received a report on real names, and Zhao Dehan, the project director of a national ministry, was suspected of receiving bribery. Ding Yizhen, deputy mayor of Jingzhou City, Handong Province, was involved in the case. The Supreme People’s Procuratorate’s Anti-Corruption Bureau Investigation Division. Chang Hou Liangping asked Chen Hai, director of the Anti-Corruption Bureau of the Handong Prosecutor's Office, to immediately cooperate with them in the investigation.
When Chen Hai was preparing to control Ding Yizhen, he was taken over by Ji Changming, the chief procurator of the Handong Provincial Procuratorate, and reported to deputy party secretary and secretary of the Political and Legal Committee Gao Yuliang and Li Dakang, secretary of the city party committee of Jingzhou City. Attended this emergency meeting.
Under this "deliberate delay", Ding Yizhen received a mysterious phone call and fled. The screen turned to the meeting gap. A mysterious figure snapped the phone out and rushed into the toilet.
After Ding Yizhen received a telephone reminder, he intentionally muted his mobile phone and placed it in the car, allowing the driver to drive back to Ding Yizhen’s hometown to “get the motherâ€. As a result, the relevant department later tracked Ding Yizhen’s mobile phone and thought that when he intercepted Ding Yizhen on the highway, he discovered that only the mobile phone was left behind.
Here are a few key questions: Why is the phone card flushed into the toilet? What information can a phone card get? How to achieve mobile positioning?
Lei Fengnet editor interviewed the famous hackers Zhang Junqiao of UnicornTeam, the well-known radio security research department in China, who is the following sister.
Zhang Yuqiao said:
"The mysterious figure who informed Ding Yizhen of the corrupt official was very smart to throw the mobile phone card into the toilet. At this time, he could best reflect the importance of the telephone card real name system. It is clear that this phone card must not be real name, or else only afterwards. Checking Ding Yi's call records can easily catch the traitor who is reported to be ventilated."
So, if it is not a real-name sim card, will all the information be found?
Zhang Qianqiao told Lei Feng network, of course not. After the SIM card enters the network, it will remain connected to the base station even if no call is initiated at the moment. The communication chip of the mobile phone will also constantly measure the signal strength of several base stations near the mobile phone and automatically connect to the base station with the strongest signal. Each base station has its own cell number, so the location information of the mobile phone can be found through the positioning of the base station.
Therefore, if the same party that vents the report does not throw away the mobile phone card, it can continue to use the anonymous mobile phone card for location tracking.
This explains why this mysterious informant has to throw away his mobile phone card.
The so-called mobile phone positioning refers to a technology or service that acquires the position information (latitude and longitude coordinates) of a mobile phone or a terminal user through a specific positioning technology, and marks the position of the positioned object on the electronic map.
There are two kinds of positioning technologies, one is GPS-based positioning, and the other is positioning of base stations based on a mobile operator network. The GPS-based positioning method uses the GPS positioning module on the mobile phone to send its own location signal to the positioning background to achieve mobile positioning.
Base station positioning is to use the estimated distance of the base station to the distance of the mobile phone to determine the location of the mobile phone. The latter does not require the mobile phone to have GPS positioning capability, but the accuracy depends to a large extent on the distribution of the base station and the size of the coverage area, and the error will exceed one kilometer.
In "The People's Name," although Ding Yizhen intentionally placed the mobile phone on the vehicle and induced "positioning" on the highway, what kind of technology is this positioning based on?
“Ding Yizhen did not shut down the mobile phone but directly allowed the driver to take it to his hometown secretly because he knew that the fastest way for the Prosecutor’s Office to inquire about his whereabouts was through the positioning of the mobile’s base station. If the mobile phone is turned off at this time (the operator cannot find out The positioning information of the mobile phone will inevitably increase the vigilance of Hou Liangping. The higher authorities' prevention of personnel from fleeing will definitely increase the awareness of guarding at public places such as airport stations. At the moment, they can open the phone and direct the phone to another direction to mislead Hou Liang. Equal people make them mistakenly believe that Ding Yizhen is still sitting in the car, so that they will relax their vigilance at the airport security work, which will make it possible for Ding Yi to escape from the state and have an opportunity. In fact, the mobile phone does not need to be in a conversation. The location of the phone can be traced. It's just that if you have a phone call, you can create the illusion that people still sit in the car.†Zhang Qiqiao analysis.
From here you can see that Zhang Haoqiao is not only a professional security researcher, but also a professional dramatist party.
Lei Feng network editor also retrieved several knowledge points:
In order to increase the degree of viewing and suspense, some film and television works incorrectly describe the location of mobile phones as having to talk for a certain period of time before they can be successfully positioned. In fact, only the mobile phone needs to be turned on, and positioning can be performed without talking at all.
It is said that since the mobile phone is turned off because there is no signal transmission, the base station cannot pick up the signal of the positioned mobile phone and cannot perform positioning. However, Lei Fengnet learned that it is also feasible to eavesdrop on mobile phone power off. If the phone is not unplugged, it may be in a “fake shutdown†state. For example, everyone has experienced an alarm in the case of a shutdown.
Mobile phone positioning is the positioning of mobile phone cards, not mobile phone positioning. If the mobile phone number is located as long as it is turned on, it can be normally positioned regardless of the replacement of any mobile phone, but it cannot locate the serial number of the original mobile phone body.
If the mobile phone number is set to call forwarding, it is equivalent to the mobile phone being turned off. The call is transferred to other numbers. This situation cannot be located.
Zhang Qiqiao believes that in terms of the inability to carry out mobile phone positioning after a call transfer, it should be divided into circumstances, such as: whether this mobile phone is on the Internet. Some mobile phones are switched off and the call is transferred to another mobile phone. The location of the switched-off mobile phone is difficult to track through the operator's network. However, if the mobile phone is in a network state and the host does not answer and transfer to another mobile phone, the location information of the mobile phone can still be traced.
[Sentence "Quarterly Attorney General, we have fixed the point where" has appeared after the positioning screen]
In the third episode, there was a line like this: “Secretary Gao, suspected to have already checked out the telephone, there are four of them. Three of them are sent from three nearby communication base stations using a mobile phone, and there is another. It was sent from a public telephone booth on the construction road."
In the later story, there was also a reduction in the scope of the base station near the provincial party committee, and call the communication record for analysis, found that there is only one communication record for outgoing calls.
One of the longest points of knowledge is that the Leifeng editor also understands that throwing away the mobile phone card is not necessarily safe, because when the mobile phone is replaced with other mobile phone cards, the mobile phone will send the only device code of the mobile phone, ie, the IMEI code, through the communication operator. Find out some clues. .
This means that people who “throw mobile cards†may not be found.
Do you feel better than the screenwriter?
2. Video surveillance and face recognition
In the second episode, there are two details that reflect the investigation methods used by the public security department - looking for clues through video surveillance information.
First, Ding Yizhen passed the disguise when he changed his name to Tom Ding and passed the airport security inspection. He fled to U.S. Los Angeles on a U.S. flight. As we all know, during the security screening, the airport has video surveillance.
The second detail is that Wei and Wei came to the Public Security Bureau to monitor. Through mobile phone positioning, Ding Yizhen’s car was discovered heading towards his hometown, Yantai. He intercepted Ding Yizhen’s car at high speed in Chaicheng and found that Ding Yizhen was not in the car. He deliberately dropped the phone. In the car, the driver confessed the two of them broke up on Yifu East Road, and then Tong Weiwei followed up on the video. He saw Ding Yizhen cross the Shijo Street before taking a taxi. Ding Yizhen’s anti-reconnaissance capability was too strong and the airport did not have ticket information for Ding Yizhen.
ã€monitoring room】
This further shows that video surveillance is an important reconnaissance tool for the relevant departments.
If the editor of Lei Feng was not mistaken, in the following story, there was another scenario: the relevant personnel investigated the surveillance video, but did not find a video record matching Ding Yizhen. In addition, there are unidentifiable plots of the monitoring videos of public telephone booths. This shows that face recognition technology is used at least in the process of matching video records.
Lei Fengnet editor once participated in a scientific research meeting and found that since 2011, all railway bureaus in China have built security check systems and provided basic hardware conditions for the construction of face recognition systems. Some stations have successively launched face recognition systems.
Shang Yanfeng, an associate researcher at the Third Institute of the Ministry of Public Security, has been engaged in image processing research for many years and has participated in multiple image identification public security applications.
He has publicly pointed out three major applications of face recognition that are generally immature: First, on high-reliability face authentication systems such as payment, social security, and access control, video or 3D models have deception problems, false rejection rate (FAR). Under the condition of less than 0.01%, the rejection rate may be as high as 30% or more. Second, when the verification system using “conformity authentication†for security uses less than 0.01% FAR, the rejection rate may be as high as 40% or more. Face image quality is poor, often less than 1 KB. The degree of coordination with on-site users is not high, and the environment is also uncontrollable. Third, the application of security blacklist monitoring is far from being resolved, and the false alarm rate is 0.01%. The rate may be less than 10%, the video quality is poor, low resolution, large-angle shooting, poor lighting, and the biggest obstacle is the lack of available training and test data.
Therefore, there is a reason for the line in the above picture, "We don't recognize the face."
3. Internet public opinion monitoring and control
In the fourth episode, Zheng Xipo was at home while he was eating and he listened to his son Zheng Shengli (net name is Caterpillar crying) talking about the Internet, e-commerce, big data, postings, deleting posts, and likes.
Then there was a plot again: The clashes at the Dafeng Factory were already photographed and sent online, and they were still broadcast live. Zheng Shengli also let the Internet pass quickly. It is now from the media generation, and the delivery speed is too fast. Soon, the news was well-known and well-known.
Workers and onlookers transmitted the relevant content of this matter to the Internet and conducted simultaneous live broadcasts. For a time, both domestic and foreign countries knew about this matter, and rumors of “strong demolitions and blood dismantling†flooded the Internet. In the follow-up plot, there was also a plot of “The net supervisor deleted the post but could not delete itâ€.
Later, there were policemen looking for Zheng Shengli. They said that they were illegal in the internet and that they were illegal. Zheng Shengli said that he did not forward more than 500 plays.
This plot reflects the reality.
In 2013, the Supreme People's Court and the Supreme People's Procuratorate issued a judicial explanation (hereinafter referred to as "interpretation") on the use of information networks to implement defamation and other criminal cases. The "Interpretation" stipulates that if an information network is used to deceive another person and the same information is actually clicked, viewed more than 5,000 times, or retransmitted more than 500 times, it shall be deemed as "the circumstances are serious under Article 246, paragraph 1 of the Criminal Law." †may constitute blasphemy. The judicial interpretation begins today.
Lei Feng Network found such a news:
On the evening of April 2nd, there was a flash explosion at the warehouse of the Wanhua Oil Products Company in the Grand View Development Zone. After the accident, various departments immediately organized rescue. At the time of intense rescue, there were people who posted false information on the Internet, spread rumors, and confused people.
That night, someone reported that a netizen posted information on his Sina Weibo, claiming that a fire and explosion accident occurred at the Anqing Petrochemical Plant's hazardous chemicals warehouse, killing 165 people, missing 8 people, injuring 798 people, and verifying direct economic losses of 6.866 billion yuan. . After investigation, this information is obviously inconsistent with the fact of the flash explosion accident, and it is spreading rumors that disturb public order. The Interpol Brigade of Lingbei Branch of the Public Security Bureau of the city quickly moved and arrested the suspect Zhang (male, 28, Anqing) in the early morning of the 3rd.
The ending of this story is that Zhang spread rumors to disrupt public order and violated the “Security Administration Punishment Act.†The police imposed a penalty of 7 days on administrative detention and conducted further investigations of online rumors.
Therefore, if you really meet the above conditions, the police officer will really come to you like a TV show.
Now, this drama is still broadcast. If there is even more interesting "high technology" in the follow-up drama, please tell Lei Feng.
With a scientific vision to pursue drama, it is a full harvest!
Into 4 million lawsuits lost decades of wealth he wrote "the people's name"
Zhou Meisen is a famous writer and screenwriter. He is honored as "the first person in Chinese political novels." He also worked as a deputy secretary-general of the city government. He also went down the sea to conduct business and engage in real estate and stock speculation. Although the stocks made a lot of money, Zhou Meisen always thought it was a sideline.
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